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Solana (SOL) Volatility Density Endpoint
x402
Solana (SOL) Volatility Density Endpoint is a paid API for AI agents from solidus-x402.fly.dev, paid per call via x402, $0.05/call, status down (last checked 2026-09-15).
Returns the SOL volatility probability density using an EWMA+HAR blend with Student-t quantile hints, useful for risk sizing and options pricing.
Price / call$0.05
Success—
StatusDown
How this service works
SOL vol density — EWMA+HAR vol blend + Student-t quantile hint (SIBYL doctrine, mean 0).
Output
Returns a volatility probability density object for SOL, blending EWMA and HAR volatility models with a Student-t quantile hint. The output is centered at mean 0 and provides a statistical distribution of expected SOL volatility, useful for options pricing, risk sizing, and tail-risk assessment.
Example use cases
Pre-trade SOL position sizing
“Before I put on this SOL position, can you pull the current volatility density estimate so I can figure out the right position size given my risk budget?”
SOL options premium estimation
“I'm pricing a short-dated SOL option — can you get me the EWMA+HAR volatility density with the Student-t quantile hint so I can calibrate the premium?”
Solana portfolio risk dashboard
“Update my risk dashboard with the latest SOL vol density estimate — I want to see where the distribution is sitting right now so I can flag any tail risk spikes.”
Technical details
Endpoint
GEThttps://solidus-x402.fly.dev/v1/density/SOLWhen to prefer
Choose this endpoint when you need a statistically grounded, model-blended volatility density for SOL rather than a raw spot price or implied vol scalar. Ideal when you need the full distributional shape (EWMA+HAR blend + Student-t tail behavior) for options pricing, VaR computation, or risk-aware position sizing on Solana. Prefer over generic price feeds when tail quantiles and distributional skew matter.
Side effects
- Payment not included or insufficient USDC (402 Payment Required)
- Invalid or unsupported symbol path parameter (422 Unprocessable Entity)
- Upstream market data unavailable causing stale or missing density (503 Service Unavailable)
- Rate limiting if too many requests in a short window (429 Too Many Requests)
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Tags
x402
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